Abstract:
An engine valve moving device in which a crank sprocket (25b) provided on a crank shaft (8) and an intermediate sprocket (38a) provided near cum shafts (36, 37) are interconnected through a timing chain (40) , and an intermediate gear (38b) secured to the intermediate sprocket (38a) is mated with cum gear (41, 42) secured to the cum shafts, wherein the diameter of the intermediate gear (38b) is smaller than the intermediated sprocket (38a), the intermediate gear (38b) is disposed behind the intermediate sprocket (38a) , and a peep hole (38c') through which the mating portions of the intermediate gear (38b) and the cum gears (41, 42) can be viewed is formed in the intermediate sprocket (38a).
Abstract:
Die Erfindung betrifft eine Vorrichtung und ein Verfahren zum Einstellen der Position eines Nockenwellenverstellers (20;100) relativ zu einer Nockenwelle (1;81), die kraftschlüssig mit einer Nockenwellenaufnahme (24; 105) des Nockenwellenverstellers (20;100) verbunden ist. Um das Einstellen der Position des Nockenwellenverstellers (20) relativ zu der Nockenwelle zu vereinfachen, ist die Nockenwellenaufnahme (24) über eine Druckmediumverbindung so mit einem Druckmedium beaufschlagbar, dass die kraftschlüssige Verbindung zwischen der Nockenwellenaufnahme (24) und der Nockenwelle (1) zum Einstellen der Position des Nockenwellenverstellers (20) relativ zu der Nockenwelle (1) lösbar ist.
Abstract:
A camshaft phaser including a locking clearance setting pin is provided. The camshaft phaser includes a stator including a first plurality of pin holes extending axially in at least one of the radially inwardly extending lobes arranged along an arcuate path. A locking cover engages against a first axial end face of the stator and includes a locking pin bore and a second plurality of pin holes arranged along the arcuate path and angularly spaced apart from one another by a different angular spacing than the first plurality of pin holes. A pin extends through a respective one of the first plurality of pin holes and a corresponding one of the second plurality of pin holes, such that a location of the pin sets an angular adjustment of the locking pin bore relative to the stator.
Abstract:
In a variable valve actuation device for an internal combustion engine, a hollow boss (22b) is fitted around the outer periphery of an outer camshaft (15a) and protrudes from one side of a second cam (22a) located opposite a first cam (20) in the width direction of the second cam over a distance greater than the width of the second cam, in order to suppress misalignment of the boss.
Abstract:
In a method for setting the rotary angle position of the camshaft of a reciprocating piston internal combustion engine relative to the crankshaft, the crankshaft is connected to the camshaft by means of a triple-shaft gear mechanism. This triple-shaft gear mechanism has a drive shaft which is fixed to the crankshaft, an output shaft which is fixed to the camshaft, and an adjusting shaft which is driven by an electric motor.
Abstract:
A gear meshing system is disclosed. The gear meshing system includes a pair of gears engaged with each other through a first plurality and a second plurality of teeth thereon. Each gear has a mark which is oriented in a predetermined relationship with a timing slot on the gear. Each gear of the pair of gears is identical to the other. Accordingly, by utilizing a marking scheme in accordance with the present invention the same gear part can be used with multiple shafts and thereby assure accurate meshing/timing upon assembly. Accordingly, the need for additional part numbers will be minimized and excessive part proliferation will be avoided.
Abstract:
In a VCT system, the rotor of a phaser is integral to a shaft such as a camshaft. The lobes on the camshaft are also integral to the camshaft. The axial dimension and the radial dimension of the resultant rotor-cam shaft-cam lobes combination is reduced.
Abstract:
An adjustable timing gear assembly and the method of making same that can readily be adjusted in the field in a manner to permit precise cam timing adjustments without having to remove the engine timing belt from the gear member of the apparatus. Importantly, the gear assembly includes strategically located and configured mating serrations that function to positively prevent accidental relative rotation between the gear member and the hub member of the device which is connected to the engine camshaft
Abstract:
An engine camshaft drive includes timing belt pulleys which are angularly adjustable on their respective camshafts to provide manual adjustment of the engine valve timing. The arrangement features combination securing and adjusting means in the form of a threaded stud having an eccentric body portion intermediate its ends that coacts with a radially elongated opening in its associated drive sprocket to provide angular adjustment of the sprocket on the camshaft, while the stud also provides means for securing the drive sprocket to the camshaft when the adjustment has been completed.
Abstract:
A timing sprocket for a camshaft is provided with a number of positioning holes equally spaced in a circle about its axis of rotation. A vernier plate connected to the camshaft is provided with alignment holes equally spaced in a corresponding circle as the circle of positioning holes but at a slightly greater or lesser angle. Alignment of a positioning hole and an alignment hole using a positioning pin permits incremental rotational adjustment of the sprocket wheel relative to the camshaft for angular increments equal to the difference between the angles of the positioning holes and the angles of the alignment holes.